fosfato e micorriza na estabilidade de agregados em amostras de latossolos cultivados e não-cultivados aggregate stability in two cropped and no-cropped oxisols as affected by phosphate addition and mycorrhiza
Clicks: 251
ID: 207733
2001
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This
article has not been analysed, so there is no overall score —
reader engagement is measured and shown alongside.
Reader Engagement
Popular Article
30.0
/100
251 views
33 readers
AI Quality Assessment
Not analyzed
Readership in this journal
PopularRanked #80 of 193 articles by views in proc - the fourth ieee workshop on software technol for future embedded and ubiquitous syst, seus 2006 andthe second int workshop on collaborative comput, integr, and assur, wccia 2006
Most read
Least read
Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 193 in total.
Mint this article as an NFT
Not yet mintedCreate a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.
5
SUSD
one-off · no wallet required
Abstract
Nos trópicos, existe escassez de informação quanto à contribuição de espécies fúngicas do solo na formação e estabilização de agregados. Este estudo teve como objetivo avaliar o efeito do histórico de uso, níveis de P, de inoculação micorrízica e cultivo com braquiária e soja em casa de vegetação, sobre o diâmetro médio geométrico dos agregados (DMG), o índice de floculação das partículas, a matéria seca das raízes, a colonização micorrízica e o comprimento total de hifas, em amostras de Latossolo Vermelho distrófico e Latossolo Vermelho distroférrico. Amostras dos dois solos, previamente cultivados por longos períodos, e de solos não-cultivados, foram trazidas para casa de vegetação, submetidas a inoculação, e a dois níveis de P, e então cultivadas com braquiária e soja, em dois cultivos sucessivos. Os resultados mostraram que o solo previamente cultivado apresentou menor comprimento total de hifas, menor estabilidade de agregados (menor diâmetro médio de agregados) e menor índice de floculação. A inoculação propiciou maior estabilidade dos agregados, e este efeito é condicionado ao nível de P do solo e ao histórico de uso. A presença de P promoveu, indiretamente, maior agregação, por propiciar maior comprimento total das hifas e matéria seca de raízes.
In the tropics there is little information on the contribution of soil microorganisms on aggregate stability in the soils. Soil management, crop and fertilization can affect the fungi specie in soil, and also affect aggregate stability. This study attempted to evaluate the effect of earlier cropping, phosphate, inoculation with AMF, and brachiaria and soybean on the geometric mean diameter (GMD), particle flocculation index, root dry matter, and total hyphal length, in dystrophic Red Latosol and dystroferric Red Latosol (both Oxisols). Samples of both soils under natural condition and previously cultivated were brought to the green house and received P fertilization and inoculation. Then, they were cultivated twice with brachiaria and soybean. The results showed that the previously cultivated soils had lower total hyphal length and lower aggregate stability (lower GMD), whereas inoculation increased these parameters according to P level. Phosphate fertilization had an indirect benefit on aggregate stability by increasing total hyphal length and root dry matter.
In the tropics there is little information on the contribution of soil microorganisms on aggregate stability in the soils. Soil management, crop and fertilization can affect the fungi specie in soil, and also affect aggregate stability. This study attempted to evaluate the effect of earlier cropping, phosphate, inoculation with AMF, and brachiaria and soybean on the geometric mean diameter (GMD), particle flocculation index, root dry matter, and total hyphal length, in dystrophic Red Latosol and dystroferric Red Latosol (both Oxisols). Samples of both soils under natural condition and previously cultivated were brought to the green house and received P fertilization and inoculation. Then, they were cultivated twice with brachiaria and soybean. The results showed that the previously cultivated soils had lower total hyphal length and lower aggregate stability (lower GMD), whereas inoculation increased these parameters according to P level. Phosphate fertilization had an indirect benefit on aggregate stability by increasing total hyphal length and root dry matter.
| Reference Key |
nbrega2001pesquisafosfato
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | ;Júlio César Azevedo Nóbrega;José Maria de Lima;Nilton Curi;José Oswaldo Siqueira;Paulo Emilio Ferreira da Motta |
| Journal | proc - the fourth ieee workshop on software technol for future embedded and ubiquitous syst, seus 2006 andthe second int workshop on collaborative comput, integr, and assur, wccia 2006 |
| Year | 2001 |
| DOI |
10.1590/S0100-204X2001001100014
|
| URL | |
| Keywords |
Citations
No citations found. To add a citation, contact the admin at info@scimatic.org
Comments
No comments yet. Be the first to comment on this article.